Steam water-heater temperature-regulator.



No. 827,608. PATENTED JULY 31, 1906.

J. D. BOWNE.

STEAM WATER HEATER TEMPERATURE REGULATOR. APPLICATION FILED JUNE 15, 1905.

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JOHN D. BOWNE, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO JAMES MONROE GRAHAM, OF NEW YORK, N. Y.

STEAM WATER-H EATER TEMPERATURE-REGULATOR.

Specification of Letters Patent.

Patented July 31, 1906.

Application filed June 15. 1906. Serial No. 265,402.

To all whom it may concern.-

Be it known that I, JOHN.D. BOWNE, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Steam Water- Heater Temperature-Regulators, of which the following is a specification.

My invention relates to steam water-heater temperature-regulatorsthat is to say, it belongs to the same class with apparatus designed to control the supply of steam passing into a water-heater by means of the temperature of the water that has been heated y the steam.

The object of my invention is the production of a regulating contrivance of the character outlined having a special construction and arrangement of elements believed to insure increased efle'ctiveness and economy in operation.

I attain the object sought by fashioning and associating the parts illustrated inthe accompanying drawings, of which' Figure 1 represents a vertical sectional front view. Fig. 2 is a side view, and Fig. 3 is a horizontal section upon the line X X of ike numbers are used to refer to the same parts throughout.

Upon the flanged bowl 1, which is provided with the pipe-coupling inlet 2 and outlet 3, to which the water-pipes are connected,

rests a hollow cap or cover 4, that is constructed with the internal cavity 5 and a flan e usually coextensive with that of the bowI. The bottom of the cavity 6 is pierced by a number of threaded orifices 7, and into those orifices are screwed the 0 en ends of the tubes 8, which thus extend downwardly into the bowl and have their lower ends closed, as shown in Fig. 1. The top of the cavity 5 is provided with a single duct 9, bored upwardly and axially through the central raised portion 10 of the cover4 and communicating with the pair of diaphragmatic expansible chambers 11, secured to the cover 4 one above the other and opening into each other. The depending tubes 8, the cavity 5, with duct 9 and expansible chambers 11, are all filled with an expansible fluid 12 which may be introduced by way of the stop-cock 13.

Valve-rod 14 is secured to the u permost chamber 11 and rises and falls with the ex diaphragmatic expansible chambers 15, ar-' ranged one. u on the other, and the rod passes upward y through both chambers and y way of the passage 16 in the head 17 of the U-frame 18 enters the valve-chamber 19, formed upon the top of the U-frame. The frame is erected u on the cover 4. (See Figs. 1 and 2.) It wil be noted here that the expansible chambers 15, through which the valve-rod passes, take the place of a stuffingbox and efiectually and permanently guard against leakage at that point and avoid the necessity for any attentlon. My purpose in employing two pairs of chambers 11 and 15 is obviously to take advantage of the combined expansion or contraction of the pairs to afford sufiicient movement for the valverod without unduly increasing the diameter of the chambers.

Valves 20 are suitably secured upon the rod 14 and are provided with the seats 21 in the chambered casting 22, which projects into the valve-chamber and is supphed with the ipe-coupling inlet 23.

T e valvechamber is furnished with a pipe-coupling outlet 24 and has a screw-plug 25 in its top, possessing a suitable channel 26 to'receive and guide the upper squared end 27 of rod 14.

In the operation any number of the dependent tubes 8 can be employed. (See Fig. 3.) One or more of them may be omitted and the threaded orifice 7 temporarily closed by the screw-plug 28. It is thought to be clear that the greater number of tubes 8 introduced and filled with the expansible liquid 12 the greater the body of fluid undergoin expansion andthe greater and more rapi will be the movement of the valve-rod; The inlet and outlet of the valve-chamber are connected, respectively, to the source of steam and to the heater. As previously explained, the bowl 1 is connected with the hot-water reservoir in the heater. Should the temperature of the water rise beyond a set degree, the expansion of chambers 11 will close the valves and shut off the steam, which is again per mitted to flow as the water passing through bowl 1 becomes cooler and the fluid the chambers contracts. In Fi s. 1 and 2 the the valve-chamber uppermost. That attitude is by no means essential to the operation as described. It will operate equally well when inverted, and its position isalways reversed when it is employed as a steam-trap, for which it is peculiarly adapted.

Having thus described my invention, and

. explained the mode of its operation, What I claim is 1. In a steam water-heater temperatureregulafor, the combination with the bowl having an inlet and outlet, of a cover for the bowl having a cavity and a plurality of orifices through the bottom of the cover and opening into the cavity, tubes having one end-closed and extending into the-bowl, the open ends of a number of said tubes being removably secured in a like number of the orifices, means for closing the remaining orifices, eXpansible chambers in communication with the cavity of the cover, a valverod attached to and actue ated by the movement of said chambers, a valve-chamber, expansible chambers having one Wall attached to the said rod and another wall attached to the said valve-chamber, the said rod arranged to pass through the said ex- 4 pansible chambers into the valve-chamber,

and valve devices within the valve-chamber controlled by the rod.

2. In a steam water-heater temperature regulator, the, combination with a bowl having an inlet and outlet, of a cover for the having one end closed and extending into the said bowl, the open ends of said tubes being secured in a number of said orifices in the cover of the said bowl, means for closing the remaining orifices, expansible chambers in communication with the cavity of said cover, a valve-rod attached to the said expansible chambers, a valve-chamber having an inlet and outlet, the said valve-rod arranged to en ter the val ve-chamber, and valve devices operated by the rod and controlling the entrance of steam into the valve-chamber correspondence with the movement of the said expansible chambers.

3. In a temperature-regulator for a steamheater, the combination with a body having a cavity, the bottom of the body being pierced with a series of orifices, tubes having one end closed, the openends of said removable tubes bein secured in a number of said orifices, means iior closing the remaining orifices, expansible chambers in communication with the cavity of said body, a valve-charm ber, valve devices within the said valvechamber and connections whereby the move ment of the expansible chambers is communicated to the said valve devices.

In testimony whereof I affix my signaturein presence of two witnesses.

JOHN D. BOWNE.

Witnesses:

LOUIS O. GAERTH, SAML. BIRNEY. 

